Crankcase oil-barrier system

Details Crankcase oil-barrier system Crankcase oil-barrier system

1990-06-28

1992-04-28

Lazarus, Ira S.

Lubrication

Systems

Rotary compressor

184 25, 417534, F01M 1300

Patent

active

051079607

ABSTRACT:
A compressor shielded from crankcase oil by a wall having a hole surrounded by a wiper through which a piston rod assembly passes and having the chamber between the crankcase and the underside of the piston provided with a pressure relief valve and an atmosphere vent having a check valve whereby the chamber is never at sub-atmospheric pressure and there is never gas flow through the wiper toward the piston.

REFERENCES:
patent: 1415858 (1922-05-01), Barrett
patent: 1743558 (1930-01-01), McCabe
patent: 1791362 (1931-02-01), Lewis
patent: 2878990 (1959-03-01), Zurcher
patent: 3165172 (1965-01-01), Baker
patent: 3272132 (1966-09-01), Stoelting et al.
patent: 3332323 (1967-07-01), Roeske
patent: 4005763 (1977-02-01), Wallis
patent: 4498372 (1985-02-01), Pareja
patent: 4674957 (1987-06-01), Ohta
patent: 4756674 (1988-07-01), Miller

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